Removing and installing steering rack - electromechanical steering rack — AUDI

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015)

• Special tools named: puller

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• Use adhesive tape that can be completely removed afterwards without leaving marks.Do not turn steering wheel while performing repair work, as otherwise airbag coil connector and return ring with slip ring F138 could be damaged.
• Leave nut screwed on a few turns to protect threads on joint pin.
• Make sure the two lever arms of the puller are parallel when maximum force is exerted; adjust as necessary.

📋 Procedure

1. To prevent unintentional turning, secure steering wheel in straight-ahead position with adhesive tape (arrow). [Note: Use adhesive tape that can be completely removed afterwards without leaving marks.Do not turn steering wheel while performing repair work, as otherwise airbag coil connector and return ring with slip ring F138 could be damaged.]
2. Remove front wheels.
3. Unscrew nut (1) on joint pin (2) of track rod ball joint until it is flush with end of thread. Counterhold if necessary when loosening. [Note: Leave nut screwed on a few turns to protect threads on joint pin.]
4. Press track rod ball joint off wheel bearing housing using ball joint puller T40010 A. Then remove nut. [Note: Make sure the two lever arms of the puller are parallel when maximum force is exerted; adjust as necessary.]
5. Remove noise insulation General body repairs, exterior66Noise insulation; Exploded view - noise insulation.

6. Unscrew nuts (arrows) and lower anti-roll bar.
7. Remove cross brace Removing and installing subframe cross brace (A4, A5 Coupé, A5 Sportback).
8. Remove cross brace Removing and installing subframe cross brace (A5 Cabriolet).
9. ⚠ Risk of damage to running gear components.Never place the vehicle on its wheels if the subframe mounting, steering rack or subframe cross brace is not correctly installed! The vehicle must not be supported on the subframe or the subframe cross brace (e.g. using a trolley jack or similar)! — Remove bolt (arrow).
10. Detach intermediate steering shaft (1) from steering rack (2).
11. Release retainer, press catch downwards and unplug electrical connector (1) for signal wires (CAN bus and terminal 15) at power steering control unit J500.
12. Unplug electrical connector (2) for voltage supply (terminal 30) at power steering control unit J500 (release retainer (arrow) and push catch downwards).
13. Remove bolts (1 and 2).
14. Push steering rack slightly to the side(arrow A) and take out from below (arrow B).
15. Screw in both bolts (1) loosely at first, then tighten.
16. Install anti-roll bar Removing and installing anti-roll bar.
17. Install cross brace Removing and installing subframe cross brace (A4, A5 Coupé, A5 Sportback).
18. Install cross brace Removing and installing subframe cross brace (A5 Cabriolet).
19. Check and adjust wheel alignment .

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